Top "Jmap" questions

A Hotspot JVM command-line utility that prints memory-related statistics for a running JVM or core file.

What are these objects in the jmap histogram?

I'm using jmap to get a histogram of the heap. I'm not sure what the objects are that are referred …

java memory jmap
Does jmap force garbage collection when the live option is used?

I've been experimenting with jmap -histo and jmap -dump today When run in this sequence jmap -dump:format=b,file=…

java garbage-collection jmap
Why is my Java heap dump size much smaller than used memory?

Problem We are trying to find the culprit of a big memory leak in our web application. We have pretty …

java memory-leaks heap-memory heap-dump jmap
Is a JVM stopped while executing jmap?

Does my java application continue running while jmap is taking its memory dump?

java memory memory-leaks jmap
How to use java memory histogram "jmap"

We have java streaming server running in production and it requires ~10GB of RAM for operation so we have 32GB …

java out-of-memory jmap
Exception when taking a heapdump using JMAP

I get the following exception when i take a heapdump using jmap -F -dump:format=b,file=/tmp/heapdump/before.…

java exception jmap
What is the meaning of "From Space" and "To Space" shown in jmap?

I understand the difference between new gen / old gen /perm gen, but I don't know what "To Space" and "From …

java memory garbage-collection heap-memory jmap
Is there a way to do a live heap dump with ibm-jdk for linux?

I know that it's possible to dump heap when an OutOfMemoryException is occuring on this JVM but is it possible …

java jdk1.6 jconsole jmap
Locating code that is filling PermGen with dead Groovy code

We have had our glassfish instance go down every two weeks for a while with a java.lang.OutOfMemoryError: PermGen …

java memory-leaks profiling permgen jmap
How to interpret the output from "jmap -permstat"?

I'm trying to troubleshoot a permgen leak, and wanted to ask you folks for your opinions on how to interpret …

java permgen jmap